Art
J-GLOBAL ID:201602016817069062   Reference number:58A0075351

Pavement Markings Improve Traffic Flow.

道路交通の流れを改良する舗装上道路標識
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Material:
Volume: 89  Issue:Page: 78  Publication year: 1958 
JST Material Number: D0409A  ISSN: 0033-3840  CODEN: PUWOA  Document type: Article
Country of issue: United States (USA) 
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